Novel horizontal forging machine die set structure convenient to mount and dismount

Abstract

The utility model discloses a novel structure of a horizontal forging machine mould base convenient to install and disassemble, which comprises a mould base body and a concave mould insert, at least two insert installation grooves which are arranged at intervals along the left-right direction are arranged on the top surface of the mould base body, and through holes which are through up and down are arranged on the left side and the right side of each insert installation groove on the mould base body. The cross section area of the positioning mounting hole is larger than that of the upper unthreaded hole, a positioning connecting block is assembled in the positioning mounting hole, a threaded hole and a lower unthreaded hole are sequentially formed in the positioning connecting block from top to bottom, and the threaded hole, the lower unthreaded hole and the upper unthreaded hole share the same center line. And the female die insert is assembled in the insert mounting groove. The mold frame is scientific in principle and simple in structure, and is improved on the basis of an existing mold frame, so that aquadag is easy to clean, bolt holes are more convenient to maintain and disassemble, only the positioning connecting blocks need to be maintained, time and labor are saved, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of the automobile industry, and particularly relates to a new structure of a swaging machine die holder which is convenient for installation and disassembly. Background Technique

[0002] A swaging machine is also called a horizontal forging machine. As a branch of mechanical presses, swaging machines mainly produce die forgings by local upsetting. In terms of the principle of motion, a swaging machine belongs to a crank press, but its working part makes a horizontal reciprocating motion. At the same time, a swaging machine has the characteristics of a hot die forging press, such as: high equipment stiffness, fixed stroke, good dimensional stability of forgings in the length direction (the direction of being struck); forging the forgings by relying on static pressure during work, with small vibration and no need for a huge foundation, etc. The forging productivity on a swaging machine is relatively high, and it is a general-purpose die forging equipment widely used in mass production.

[0003] The die used by a swaging machine to produce forgings consists of a punch 4, a die cavity and a clamping die cavity. The punch 4 is installed on the punch holder, and the die cavity and the clamping die cavity are installed on the die holder body 2 of the swaging machine in the form of die inserts, and are fastened by bolts.

[0004] The swaging machine die and die holder are as Figure 1 shown. According to the traditional swaging machine die holder design, upper light holes and counterbored holes are machined on the die insert, an insert installation groove 6 is provided on the die holder body 2, bolt holes 3 and counterbored holes 7 are machined on both sides of the insert installation groove 6 on the die holder body 2, the die insert is assembled in the insert installation groove 6, and the die insert is pressed against the die holder body 2 with bolts. The schematic diagram of the traditional die holder is as Figures 2 - 5 shown, and there are the following problems:

[0005] 1) The bolt holes 3 on the die holder body 2 are blind holes, which are easy to accumulate graphite milk for forging lubrication, resulting in difficult disassembly and assembly of bolts and affecting the replacement of die inserts;

[0006] 2) The bolt holes 3 on the die holder body 2 are prone to deformation and failure, resulting in difficult disassembly of bolts and difficult die replacement; the bolt holes 3 are worn, and the die inserts cannot be locked, and the die inserts fall off during production, posing safety and equipment hazards.

[0007] 3) When repairing the bolt holes 3 on the die holder body 2, the whole die holder body 2 needs to be disassembled for repair, and the repair cost is high. Content of the Utility Model

[0008] In order to solve the above technical problems existing in the prior art, the utility model provides a new structure of a swaging machine die holder which is convenient for installation and disassembly, has a simple structure, is safe and reliable, and has low maintenance cost.

[0009] To solve the above technical problems, the present utility model adopts the following technical solutions: a new structure of a upsetting press die holder that is convenient for installation and disassembly, including a die holder body and a die insert. At least two insert mounting grooves are arranged at intervals in the left-right direction on the top surface of the die holder body. Through holes that penetrate up and down are opened on both the left and right sides of each insert mounting groove on the die holder body. The through holes are, from top to bottom, counterbore holes, upper light holes, and positioning and mounting holes in sequence. The cross-sectional area of the positioning and mounting holes is larger than that of the upper light holes. A positioning connection block is assembled in the positioning and mounting holes. A threaded hole and a lower light hole are successively opened in the positioning connection block from top to bottom. The threaded hole, the lower light hole, and the upper light hole are coaxial. The die insert is assembled in the insert mounting groove. The die insert is threaded into the threaded hole by a bolt that successively passes through the counterbore hole and the upper light hole from top to bottom.

[0010] The cross-sectional shapes of both the positioning and mounting holes and the positioning connection block are elliptical, and the cross-sections of the positioning and mounting holes and the positioning connection block gradually increase from top to bottom.

[0011] Both the positioning and mounting holes and the positioning connection block have a height of 100 mm, the threaded hole has a length of 45 mm, the lower light hole has a length of 55 mm, and the angle between the generatrix of the inner circle of the positioning and mounting hole and the outer circle of the positioning connection block and the center line of the upper light hole is 1°.

[0012] A set of positioning and mounting holes and positioning connection blocks are shared by the two through holes that are closer to each other in two adjacent insert mounting grooves.

[0013] Adopting the above technical solutions, compared with the prior art, the present utility model improves the blind holes in the die holder body into through holes that penetrate up and down, and a positioning and mounting hole with an enlarged cross-section is opened at the lower part of the through hole. A positioning connection block is arranged in the positioning and mounting hole, and a threaded hole for connecting with a bolt is arranged in the positioning connection block. In this way, when the bolt passes through the upper light hole and is connected to the threaded hole, since the cross-section of the positioning connection block is elliptical (the shape of an athletics track), the positioning connection block can remain stable in the positioning and mounting hole when the bolt is rotated.

[0014] During the production process, when graphite emulsion accumulates in the upper light hole, the bolt is unscrewed, and the accumulated graphite emulsion is discharged downward through the threaded hole and the lower light hole.

[0015] When the threaded hole is damaged and needs to be repaired, only the positioning connection block needs to be disassembled, which is more convenient, time-saving, labor-saving, and low-cost.

[0016] The angle between the generatrix of the inner circle of the positioning and mounting hole and the outer circle of the positioning connection block and the center line of the upper light hole is 1°, that is, the cross-sections of the inner circle of the positioning and mounting hole and the outer circle of the positioning connection block gradually increase from top to bottom, which is convenient for the installation and disassembly of the positioning connection block. The length of the threaded hole is less than half of the height of the positioning connection block. While ensuring the threaded connection length, the number of turns of the bolt rotation is minimized as much as possible to improve work efficiency.

[0017] The heights of both the positioning installation holes and the positioning connection blocks are 100 mm, the length of the threaded holes is 45 mm, and the length of the lower clearance holes is 55 mm. These dimensional parameters are specifically set based on the thickness of the die holder body to ensure the reliability of the connection strength.

[0018] In summary, the principle of the present utility model is scientific and the structure is simple. It is improved on the basis of the existing die holder, so as to achieve easy cleaning of the graphite emulsion, more convenient disassembly of the maintenance bolt holes, and only the positioning connection blocks need to be maintained, saving time, effort and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic plan view of the die used for forging parts by a horizontal forging machine;

[0020] Figure 2 is a schematic plan view of the existing die holder of a horizontal forging machine;

[0021] Figure 3 is Figure 2 the A-A cross-sectional view in

[0022] Figure 4 is a schematic perspective view of the existing die holder of a horizontal forging machine in a top view state;

[0023] Figure 5 is a schematic perspective view of the existing die holder of a horizontal forging machine in a bottom view state;

[0024] Figure 6 is a schematic plan view of the present utility model;

[0025] Figure 7 is Figure 6 the E-E cross-sectional view in

[0026] Figure 8 is a schematic perspective view of the present utility model in a top view state;

[0027] Figure 9 is a schematic perspective view of the present utility model in a bottom view state;

[0028] Figure 10 is a schematic plan view of the positioning connection block assembled in the positioning installation hole;

[0029] Figure 11 is a schematic perspective view of the positioning connection block assembled in the positioning installation hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments.

[0031] Figures 6 - 11As shown in the figure, the new structure of the upsetting press die set that is convenient for installation and disassembly of the present utility model includes a die set body 2 and a die insert block (not shown in the figure). At least two insert block installation grooves 6 are arranged at intervals in the left-right direction on the top surface of the die set body 2. Through holes that penetrate up and down are opened on both the left and right sides of each insert block installation groove 6 on the die set body 2. The through holes are, from top to bottom, a counterbore 7, an upper light hole 8, and a positioning installation hole 9 in sequence. The cross-sectional area of the positioning installation hole 9 is larger than the cross-sectional area of the upper light hole 8. A positioning connection block 10 is assembled in the positioning installation hole 9. A threaded hole 3 and a lower light hole 11 are opened in the positioning connection block 10 from top to bottom in sequence. The threaded hole 3, the lower light hole 11, and the upper light hole 8 are on the same center line. The die insert block is assembled in the insert block installation groove 6. The die insert block is threaded through the counterbore 7 and the upper light hole 8 from top to bottom by a bolt (not shown in the figure) and then extends into and is threadedly connected to the threaded hole 3.

[0032] The cross-sectional shapes of the positioning installation hole 9 and the positioning connection block 10 are both oval, and the cross-sections of the positioning installation hole 9 and the positioning connection block 10 gradually increase from top to bottom.

[0033] The heights of both the positioning installation hole 9 and the positioning connection block 10 are 100 mm. The length of the threaded hole 3 is 45 mm, and the length of the lower light hole 11 is 55 mm. The angle between the generatrix of the inner circle of the positioning installation hole 9 and the outer circle of the positioning connection block 10 and the center line of the upper light hole 8 is 1°.

[0034] For two adjacent insert block installation grooves 6, the two through holes that are closer to each other share a set of positioning installation hole 9 and positioning connection block 10, such as Figure 6 and Figure 9 M in the figure. Here, the dimensions of the positioning installation hole 9 and the positioning connection block 10 in the long axis direction of the ellipse are larger than those of other individual positioning installation holes 9 and positioning connection blocks 10.

[0035] The present utility model improves the blind hole in the die set body 2 into a through hole that penetrates up and down, and a positioning installation hole 9 with an enlarged cross-section is opened at the lower part of the through hole. A positioning connection block 10 is arranged in the positioning installation hole 9, and a threaded hole 3 for connecting with a bolt is arranged in the positioning connection block 10. In this way, when the bolt passes through the upper light hole 8 and is connected to the threaded hole 3, since the cross-section of the positioning connection block 10 is oval (the shape of an athletics track), when the bolt is rotated, the positioning connection block 10 can remain stable in the positioning installation hole 9.

[0036] During the production process, when graphite emulsion accumulates in the upper light hole 8, the bolt is unscrewed, and the accumulated graphite emulsion is discharged downward through the threaded hole 3 and the lower light hole 11.

[0037] When the threaded hole 3 is damaged and needs to be repaired, only the positioning connection block 10 needs to be disassembled, which is more convenient, time-saving, labor-saving, and low-cost.

[0038] The included angle between the generatrix of the inner circle of the positioning and mounting hole 9 and the outer circle of the positioning and connecting block 10 and the center line of the glazing hole 8 is 1°, that is, the cross-section of the inner circle of the positioning and mounting hole 9 and the outer circle of the positioning and connecting block 10 gradually increases from top to bottom, which is convenient for the installation and disassembly of the positioning and connecting block 10. The length of the threaded hole 3 is less than half of the height of the positioning and connecting block 10. While ensuring the length of the threaded connection, the number of turns of the bolt rotation is minimized to improve work efficiency.

[0039] It has been proven by practice that the new structure of the improved spline hub forging has the following improvements in quantitative standards:

[0040] 1) The through hole inside the die carrier body 2 is a long through hole, which is easy to clean the accumulated graphite emulsion;

[0041] 2) The die change time is shortened, and the work efficiency is increased by more than three times;

[0042] 3) The maintenance cost of the die carrier body 2 is reduced, and the maintenance cost is reduced by 60%.

[0043] The above embodiments illustrate the basic principles and characteristics of the present invention. However, the above only illustrates the preferred embodiments of the present invention and is not limited by the described embodiments. Those of ordinary skill in the art, inspired by this patent and without departing from the purpose of the present invention and the scope protected by the claims, can also make many forms of deformation and improvement, which are all within the protection scope of the present invention. Therefore, the patent and protection scope of the present invention shall be subject to the appended claims.

Claims

1. A new structure of a horizontal forging machine die holder that is convenient for installation and disassembly, including a die holder body and a concave die insert. At least two insert installation grooves are arranged at intervals in the left-right direction on the top surface of the die holder body, and it is characterized in that: On the mold base body, through holes that penetrate up and down are provided on both the left and right sides of each insert mounting groove. The through holes are, from top to bottom, counterbore holes, upper light holes, and positioning and mounting holes. The cross-sectional area of the positioning and mounting holes is larger than that of the upper light holes. A positioning connection block is assembled in the positioning and mounting holes. A threaded hole and a lower light hole are successively provided in the positioning connection block from top to bottom. The threaded hole, the lower light hole, and the upper light hole are on the same center line. The female die insert is assembled in the insert mounting groove. The female die insert is inserted through the counterbore hole and the upper light hole from top to bottom by a bolt and then extends into and is threadedly connected to the threaded hole.

2. The new structure of the upsetting press die holder that is convenient for installation and disassembly according to claim 1, wherein: The cross-sectional shapes of the positioning and mounting holes and the positioning connection block are both oval, and the cross-sections of the positioning and mounting holes and the positioning connection block gradually increase from top to bottom.

3. The new structure of the upsetting press die holder that is convenient for installation and disassembly according to claim 2, wherein: The heights of the positioning and mounting holes and the positioning connection block are both 100 mm, the length of the threaded hole is 45 mm, the length of the lower light hole is 55 mm, and the angle between the generatrix of the inner circle of the positioning and mounting hole and the outer circle of the positioning connection block and the center line of the upper light hole is 1°.

4. The new structure of the upsetting press die holder that is convenient for installation and disassembly according to claim 2 or 3, characterized in that: A group of positioning and mounting holes and positioning connection blocks are shared by the two through holes with the closest distance in two adjacent insert mounting grooves.

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